Cell Adhesion & Communication Step by step Solution with Explanation

Your question:

20. Two of the major components of the basal lamina are

a Ahronectin and Type I collagen.

21. Which of the following proteins would likely require a detergent to be extracted away from a cell membrane!

a-catenin

a the formation of sight junctions between call

b the binding of cells so each other wing integrina

Cell Adhesion & Communication Answers and Explanation

20. Two of the major components of the basal lamina are:

• a. Fibronectin and Type I collagen
  This is incorrect. Fibronectin and Type I collagen are components of the extracellular matrix, but not specifically major components of the basal lamina.

Correct answer: c

21. Which of the following proteins would likely require a detergent to be extracted away from a cell membrane?

Correct answer: d

22. Imagine that you have epithelial cells growing on a culture plate at high density so that they make contacts with each other. You inject a fluorescent small molecule into the cytoplasm of one of the cells and you see it spreading to all cells on the dish. The ability to spread from one cell to the others on the dish is most likely due to:

• e. The binding of cells to each other using desmosomes
  This is incorrect. Desmosomes are involved in providing structural support between cells but do not allow for the transfer of small molecules.

Correct answer: c